In this study, the strength property is investigated through structural and vibration analysis on the lead screw of height drive module for automotive power seat. The positions of applied loads are lowest, middle and highest on the model of lead screw in cases of 1, 2 and 3. Natural frequencies are examined about three kinds of models and critical frequencies are also checked by harmonic responses. Maximum deformations are shown as 0.033mm, 0.026mm and 0.551mm respectively in models of 1, 2 and 3. In case 3 at highest position, this strength becomes weakest by comparing with cases 2 and 3. By use of this analysis result, it is possible to design the model effectively applied at automotive safe driving.

Abstract
 1. 서론
 2. 해석모델 및 구속 조건
  2.1 해석모델
  2.2 해석 조건 설정
 3. 해석결과
  3.1 구조해석
  3.2 진동해석
 4. 결론
 후기
 References

• 김기선(공주대학교 기계자동차공학부) | Key-Sun Kim
• 조재웅(공주대학교 기계자동차공학부) | Jae-Ung Cho Corresponding Author